An overdrive method includes: performing loss compression to an input image to generate image data, and storing the image data into a memory; reading the image data from the memory and decoding the image data to obtain a previous image; obtaining a current image, calculating a difference between a current grey level at a location of the current image and a previous grey level of the previous image at the location; calculating a gain according to the difference and a threshold; calculating an overdrive grey level according to the current grey level and the previous grey level; and mixing the overdrive grey level and the current grey level based on the gain to generate an output grey level to replace the current grey level.
Legal claims defining the scope of protection, as filed with the USPTO.
3. The overdrive method of claim 2, wherein the continuous and increasing function is a polynomial function.
6. The overdrive circuit of claim 5, wherein the overdrive computation circuit is further configured to calculate a ratio of the difference to the threshold and input the ratio into a continuous and increasing function to obtain the gain.
7. The overdrive circuit of claim 6, wherein the continuous and increasing function is a polynomial function.
8. The overdrive circuit of claim 5, wherein the overdrive computation circuit is further configured to input the current grey level and the previous grey level to a lookup table to obtain the overdrive grey level.
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November 30, 2020
January 17, 2023
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